Electric-lamp holder



-V. MARTINEZ. ELECTRIC LAMP HOLDER.

APPLICATION FILED JUNE 4, 1917;

Patented J 1111) 15, 1920.

2 SHEETSSHEET I.

11v VENTOR.

V. MARTINEZ.

' ELECTRIC LAMP HOLDER.

APPLICATION FILED JUNE 4, 1917.

Y Patented June 15, 1920.

2 SHEETSSHEET 2- I INVENTOR.

' AT oRAiEYs.

5 sulating and contact members.

VICTORINO MARTINEZ, OF HABANA, CUBA.

ELECTRIC-LAMP HOLDER.

Specification of Letters Patent.

Patented June 15,1920.

Application filed June 4, 1917. Serial No. 172,775.

To all whom it may concern:

Be it known that I, VICTORINO MARTINEZ, citizen of the Republic of Cuba, residing at Habana, have invented certain new and use- 5 ful Improvements'in Electric-Lamp Holders, of which the following is a' full, clear, and exact specification.

This invention relates to an improved form of electric bulb socket, together wlth a L new type of switch therefor.

Referring to the accompanying drawings:

Figure 1 is an end elevation of a socket constructed in accordance with my invention;

.5 Fig. 2 is a side elevation thereof.

Fig. 3 is a vertical section taken along line 33 of Fig. 2.

Fig. 4 is a vertical section taken along llne 4-4 of Fig. 1 showing the circuit closed.

:0 Fig. 5 is a view slmilar to Fig. 4, but

showing the circuit open.

.Fig. 6 is a section taken along the 'llne 6-6 of Fig. 2.

Fig. 7 illustrates certain detalls of my 111'- i 8" shows the second of the contact mem ers.

Fig. 9 illustrates the switch included in m socket.

0 efer'ring more particularly to the refer- ,ence letters on the views, it will be seen that 1 designates the outer, shell preferably constructed of a non-conducting material such as wood, such shell being provlded ad acent 5 its lower end with a metallic ring 1' and be-' ing further formed with a restricted neck opening at its upper end, such as 2 provided with a gasket 3 retained in applied position by means of the screw 4.

9 The inner face of the'lower end of the shell 1 is cut with screw threads 5, adapted to engage and retain in applied osltion the conventional metalhc liner 6.' porcelain insulator, or one which may be constructed as well as holding the two halves 7 and 7' i firmly together.

A longitudinal opening 13 extends which. firmly of other suitable material, formed in two through the entire length of the half 7 whlch opening is adapted to inclose the stem 12.0f the contact member 14 which is connected to the wire 15 by means of the reducedend portion 12.

A contact plate 16 is provided with a stem with an enlarged end such as 19, which projects into-the chamber 18 and is retained therein by reason of its bearing against the shoulder 17. A stud 22 is provided .with an enlarged base 21 extending also into the chamber 18 and retained therein by means of the base 21 engaging the shoulder 23 of the chamber lS, and a spring is interposed between the portions 17 and 21 to hold them in firm seating position with the portions of the chamber 18 against which their enlarged ends bear.

Conversely extending o enings 24 and 25, running parallel one to t e other, are provided through the insulator 7 and 7 hav- 1ng between them a partition 26. Y

A switch member having operating buttons 29 and 35 provided with enlarged plugs 29 and 35, is provided and includes a rod 30 having a screw threaded end 30 serving to engage the member thereto, which rod 30 is provided with an ofl'set portion 30 and a straight end portion 32. Below the rod 30 is a shorter rod 31 end portion 31. It would of course'be understood that these rods are formed of some good electrical conducting material. rod 30 is adapted to be housed by the open ing 24, while the rod 31 projects into the opening 25:

In operation it will be noted that the current, assuming that a bulb is positioned within the socket and. that the switch member is in the position shown in Fig. 4, will come down through wire 11 and through screw 9'into the rod 30 at 30 and bridge across by means of the conductor 32 to the rod 31 engages the stud 22, thence through the spring 20 to the contacting member 16, through the filament of the lamp and in return to the member 6 to the contact member 14 through the neck 12 of the same and back into the wire 15. It will be noted provided with an inclined The be retained opened, until it is'desired to light the'lamp when the circuit maybe closed by exerting pressure upon the button 29.

Having described my invention, what I claim is:

1. A-light socket including a casing lhaving oppositely arranged open1ngs,an'i nsulating plug in the casing having, spaced transverse openings extending to the openr with one of the contact points, and a shorter rod attached to one of the buttons and arings in the casing, contact points extending into the openings of the plug,; buttons arranged for sliding movement in the openings in the casing,.aconductor rod connecting said buttons and arrangedin one of the openings in the, plug and for engagement ranged in the other opening in the plug and for engagement and disengagement with the other contact point, said rods being electrically connected together. Y

7 A light socket including a casing having oppositely arranged 'openings,- an insuengagement with. one of the contact points,

anda shorter rod attached to one of the buttons and arranged in the otheropening in the plug, and for engagement and disengagement with the other contact point, the last named contact point being spring pressed and said rods being electrically connected together. i In testimony whereof I aflix my signature in presence of two witnesses.

VIOTORINO MA TINEZ. v Witnesses:

CAR OS INOGUERAL, H. C. VOGENITZ. 

